So far, players reporting this problem are those that have installed either Gunslinger's Editor Update or Kegetys' Object Files addon.
Recently, OFP player SelectThis has come out with his own beta patch to resolve the HUD problems caused specifically by Gunslinger's Editor Update.
To determine which addon is causing this problem in your installation, temporarily remove all of the unofficial addon files from OFP's ADDONS subdirectory, add them back one at a time, and check the HUD display each time to determine which addon is causing the problem.
Found other addons causing this problem? Let me know, will ya?!